AMSOIL 100% Synthetic Motor Oil

AMSOIL 100% Synthetic Motor Oil Add to MyBests

Expert Review

Widely considered to be the best synthetic oil money can buy, AMSOIL would be the #1 choice if it weren't for its high price tag (nearly double that of Pennzoil Platinum) and the fact that it's harder to find unless you're ordering online. AMSOIL synthetic oil can withstand extreme temperatures and holds up very well under extended drain intervals, as shown by scores of used oil sample analysis results. If you want the best and don't mind paying for it, it's the way to go.Rating: 4/5

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  • Brian_K Brian_K

The importance of using good-quality oil in an engine cannot be overstated. AMSOIL synthetic motor oils consistently outperform conventional and other synthetic oils in virtually every category of performance, including wear protection, extreme high- and low-temperature performance, foam control, viscosity retention, rust and corrosion protection, volatility and fuel economy. While other brands may provide good performance in some of these areas, AMSOIL synthetic motor oils consistently perform at the top in every category. Drivers can have confidence knowing that AMSOIL synthetic motor oils provide maximum performance and protection.

Posted on 1/12/2013 1:02 am | Reply
  • Brian_K Brian_K

It amazes me how some people are stuck on only looking at the sticker price when comparing 2 different items. The time, money, and fuel savings make Amsoil the most cost effective choice out there. All you have to do is take the time to do the

Posted on 8/24/2012 12:15 pm | Reply
  • Herb Herb

Brian you are correct. If more people would take the time and do the math, they would be amazed on the savings using Amsoil, not alone the other benifits of using the product. Amsoil is the only Synthetic motor oil in the industy with a "Guaranteed" 25,000 mile / 1yr drain interval.

Posted on 8/30/2012 10:54 am. In reply to Brian_K | Reply
  • Honeybadger Honeybadger

I have a 2007 Ford Ranger with the 4 cylinder Mazda engine, and I first changed to Mobil 1 at 10,000 miles. I then changed to Amsoil 0-20 at 40,000. On my first trip to Yosemite after the oil change, I found that a few times I was cruising down the freeway in 4th gear rather than 5th. The engine was that quiet. Senior moment, perhaps. Non scientific for sure, but I do have a commercial licence of 40 years.

Posted on 10/22/2011 10:24 pm | Reply
  • Herb Herb

AMSOIL Synthetic Motor Oils proven the best. All others claim to be the best, but ASMOIL can acually prove it.

Posted on 2/19/2011 9:04 am | Reply
  • nateparham nateparham

the editor had one thing right that AMSOIL is the best oil for performance. I did a little figuring since my last post . Our XL oils works out to $2.15 per quart per 3000 miles , it is a 10 k oil change. Our premium oils or our 25k miles works out to around $1.03 per quart per 3000 miles . 3 oil changes compared to our XL oil change, or 8 oil changes compared to our Premium or 25k oils. Do the math AMSOIL is cheaper per oil change and there is no better protection out there . ANy further question feel free to contact us at oh yeh those prices are delivered to your front door and you will have a servicing dealer that can help you with any further questions or concerns you may have . Thanks and move up to AMSOIL.

Posted on 10/25/2010 6:15 pm | Reply
  • nateparham nateparham

the statement about AMSOIL is a little onesided , if the editor of this column did the study he would see that using AMSOIL saves you money not cost more. AMSOIL offers 3 lines or levels of oil well 4 . The lowest or cheapest is OE it is a full synthetic and is changed at manufacturer longest drain interval, then there is an XL line which is a 10 k oil change , there is a 25 k and of course the sso which is a 35k oil change. if you have any questions feel free to contact me . Thanks and if you would like to move up to the best move up to AMSOIL

Posted on 10/24/2010 1:34 pm | Reply
  • smokey1982 smokey1982

i have a 99 chev blazer and have use Amsoil from mile 1 and now have over 140000on the motor and it still runs like new it runs cooler and gets 2-4 mpg over what stock is i live in wisconsin so i have some cold and snow with some heat but this is the best oil that i have ever run i put on 10000 to 12000 a year and it is worth what you pay for it i will never use and other oil

Posted on 9/26/2010 9:26 am | Reply
  • Anonymous Anonymous

I have used Amsoil for over 30 years, I have never had a single engine problem with regard to wear . the first car I used it in had 428,000 miles on it when I sold it. The next one had 368,000. I always averaged 3 to 5 more MPG than normal and I never changed oil at less than 25,000 mile intervals. Both these cars had factory compression readings even across all cylinders when I sold them. Thank You Amsoil !!!

Posted on 8/2/2010 8:40 am | Reply
  • Dave Hubinek Dave Hubinek

With such little information offered here I am wondering how the conclusion was made. If you look at the stats/properties of these oils you will see Amsoil comes out on top. The true downfall of Amsoil is not being able to walk into every parts store and buy it.As an Amsoil dealer I certainly lean towards Amsoil. I am also running a current test using Amsoil SSO in a customers vehicle that puts on 18000 miles per year. We are going to run Amsoil with EA filter for one year and post oil analysis data to show the condition of oil. I even have an option people to vote on the oil analysis company I will use at the end of the study.. Although it is not a comparison it will show that Amsoil will be good for one year 18K2006 Chevy Impala SS Oil Change Study

Posted on 6/22/2010 8:19 pm | Reply
  • buysynthetic buysynthetic

Updated link due to some changes in the site structure.

Posted on 12/24/2010 12:26 pm. In reply to Dave Hubinek | Reply

I started out in 2005 with Mobil One, then Pennz, then Royal Purple then Amsoil. I will drive from 40000 to 100000 a year. My car has 152000 and runs better than it ever has. I have used Amsoil for over a year and it is worth the price. I now change my oil every six months. My mileage has increased from 18 to 20 mpg to over 26 mpg and I have the records to prove it.

Posted on 6/17/2010 8:15 pm | Reply
  • nateparham nateparham

Hello bill if you would like more fuel economy swap your transmission and rear end fluids to AMSOIL also it will give you a little more money back in your pocket with better fuel economy. I am an AMSOIL dealer and i have seen the benefits myself that is one reason i became a dealer . feel free to contact me with any questions at

Posted on 10/24/2010 1:40 pm. In reply to BILL GOFF | Reply
  • flaguy flaguy

The article even says it's the best, no comparison with anything else. The only knock on amsoil anyone can come up with is price. But if it's truly "The Best" that you want, wouldn't you expect to pay more for it? I have $24k invested in my Harley. I pay hundreds for chrome parts. Am I really going to get cheap when I buy 4 qts of oil? I use the 20-50 in the engine, the transmission, and in the primary. Since I have an oil temp guage I know for sure the bike started running slightly cooler when I switched to Amsoil?

Posted on 6/16/2010 6:29 pm | Reply
  • steve steve

Synthetic oil is a lubricant consisting of chemical compounds which are artificially made (synthesized) from compounds other than crude oil ONLY FULL SYNTHETIC OIL is AMSOIL..

Posted on 5/14/2010 2:58 pm | Reply
  • Anonymous Anonymous

like the page said...Amsoil is the leader, but for the common joe public, Penzoil Platinum is more affordable

Posted on 3/26/2010 9:07 am | Reply
  • OilMan OilMan

pENZOIL MAY BE MORE AFFORDABLE BECAUSE ITS A CHEAPER OIL, AND YOU CHANGE THEIR OIL MORE THAN ONCE A YEAR. iF YOU FIGURE MOST PEOPLE BUY REGULAR OIL AND CHANGE IT EVERY 3-5,000 MILES. tHATS A WASTE OF MONEY, IT WILL COST YOU ABOUT $35-40.00 EACH CHANGE AT MOST Jiffy Lubes. At that rate 4-5 times a year your spending about $200.00, when you can change it once every 25,000 miles or once a year costing you about $70-80.00 a year, thats a nice saving in your pocket and your engine will run cooler, with less friction and less wear, more power and performance its a no brainer. You save money and get better gas mileage and put less waste oil back into the environment, what could be better. Parts stores don't carry it much because they don't get any calls for it and they can sell more of the cheaper oil and they make more money then. Most of your so called synthetic oils are not real synthetic at all and some are part synthetic. Amsoil is the first in synthetics since 1972 and has never changed, except to produce many diffrent kinds for all types of engines, gas, diesel, natural gas engines, two and four stroke engines. There is something for all types of engines. Check out our site at or call me 973-257-2809

Posted on 12/29/2011 10:01 pm. In reply to Anonymous | Reply
  • Anonymous Anonymous

I have used several different motor oils in my 02 Ford Taurus and nothing has even compared to when I switched over to AMSoil 0w20. I have switched over to motor oil and transmission fluid and with almost 156,000 miles it runs better than when it was just off the dealership lot. I got my sister to switch over from her 5,000 miles oil change and she is very happy. Especially after realizing she was getting 30-32 miles per tank more. That is like 1 1/2 -- 2 gallons of free gas per tank from just changing over to AMSoil 0w20. Not to mention only having to change the oil one time per year.

Posted on 3/7/2010 7:56 am | Reply
  • Anonymous Anonymous

Yes I might be biased towards Amsoil because I sell the stuff, but how in the world did you come up with Amsoil being 2nd best? With a 25,000 mile drain interval vs. Pennzoil's 5,000 (at least that's what they tell you at the quick lube) you can probably safely go 7,500 with Pennzoil, but that's still a fry cry from 25,000 miles. Have you ever done a fuel mileage comparison? I tried Pennzoil once and didn't see any difference. Once I switched to Amsoil it jumped 2 more mpg, which tells you the engine isn't working as hard. I think Amsoil deserves top billing here if you look at all the facts.

Posted on 2/28/2010 4:24 pm | Reply
  • bery53 bery53

Tell me this,I have ran Amsoil in my 2007 F-150 since it was new,and same filter.The moter gave out at 109,000 miles.dropped a valve from what it looks like.Went to the shop and took a look at the inside of the moter,what a mess Sludge,Varnish and ware on the cams,Mech has been doing this all his life not a fan of Amsoil,also have Amsoil in tranny and rear end.Don't know if it was the Ford moter and all it's problems or the oil.From what I saw the Amsoil did not perform as stated...Would like to stick with Amsoil but don't know now!

Posted on 6/2/2012 4:40 am. In reply to Anonymous | Reply
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